The average number of moves a person makes in his or her lifetime is 12. If the standard deviation is 3.2, find the probability that the mean of a sample of 36 people is less than 10.

Answers

Answer 1

Answer:

Answer:

0.0001

Step-by-step explanation:

The average number of moves a person makes in his or her lifetime is 12.

We want to find the probability that the mean of a sample of 36 people is less than 10, if the standard deviation is 3.2.

We calculate the z-score using the formula:

$z=( \bar \: X-\mu)/((\sigma)/(√(n)))$

We substitute the values to get:

$z=(10-12)/((3.2)/(√(36)))$

We simplify to get;

$z=( - 2)/((3.2)/(6)) = - 3.75$

From the standard normal distribution table we read -3.7 under 5 to obtain the area to the left of -3.75 as 0.0001

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303 is what percent of 600?explain

Answers

303 is x% of 600

In math...
"is" means =
"of" means ×

303 = x% × 600
303 = 600x
303/600 = x
.505 = x

multiply by 100 to convert to percent (move decimal to the right 2 places).

.505 × 100 = 50.5%

303 is 50.5% of 600

If you are asked this is what fraction of this, simply take it as fraction and multiply by 100.

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303
––– × 100 = 50.5 %
600

[tex]Which number is irrational?A. 0.14

B.
1/3

C.
square root of 4

D.
Square root of 6

Answers

D. because the square root of 6 is 2.44948974278 The definition of a rational number is: a number that can be out in decimal form and terminates. Terminates means that it ends. The square root of 6 does not end, it continues on and on and on much like Pi.

Can u pls explain this if u found the answer because i was not at school when they learned that lesson

Answers

16 divided by 0.2 (20%)

Gets you 80

Evaluate (2 over 5) and 5 holes

Answers

Can you explain further?

Answer: the evaluation of (2 over 5) and 5 is equal to 7/5.

Step-by-step explanation:

the perimeter of a square is 4 times as great as the length of any of its sides. Determine whether the perimeter of the square is proportional to the side length. Explain your reasoning

Answers

if the side of the square is a,
perimeter of a square = 4*a
therefore, whatever the side's length is, the perimeter is 4a
so, perimeter:side= 4a:a

Answer:

Step-by-step explanation:

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4. Jeff put a small box is 12 inches long 8 inches wide and 4 inches tall inside a box that is j 20 inches long 15 inches wide and 9 inches high How much space is in the larger box

Answers

The answer is :
20 x 15 x 9 - 12 x 8 x 4
=2700-384
=2316

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